Fangrui Product Details Adopt Cmi8738 5.1 Multi-channel Sound Effect Chip Pci-e Sound Card Adopts Pci-express Bus Slot, Supports 6-channel Surround Sound Output, Supports Dls Sound Library Technology, Supports A3d 1.0 And Ds3d, And Is Compatible With Directsound 3d And Eax Sound Effects. Support 24-bit Spdif Out And Spdif In (optional), Provide Surround Sound Field And Clear Sound Quality, Suitable For Home Theater, Large-scale 3d Games, Enjoy Music, Karaoke And Other Entertainment. 1. Full-duplex 5.1-channel Pci-express Sound Card 2. Adopt Via Vt1723 Envy24d Multi-channel Sound Effect Chip 3. Comply With Pci-express X1 Specification Revision 1.1 4. Comply With Ac97 Standard Revision 2.3 5. Sound Sampling Rate 24-bit, 48 Khz Supports Playback And Recording 6. Support Front L/r, Surround L/r, Centre/subwoofer, S/pdif-out 7. Optional Daughter Card Supports Rear Surround L/r, Linear Input L/r, Mono Mic-in, S/pdif-in 8. When The Pc Power Is Off Or On, The Noise Balance Cancellation Function Product Name: Pcie Sound Card Chip: Cmi8